Data as of Nov 11, 2026
97.77.221.0/24
No anonymizer space · no proxy exits in 30 daysSouth Texas College · space held by Charter Communications Inc
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 97.77.0.0/16 since Jul 2010 | AS11427 | Residential | 195 15 always on | Charter Communications Inc |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 97.76.0.0/14 | 262,144 | RCSW | Charter Communications Inc (CC-3517) · US | Direct Allocation | Sep 11, 2007 | abuse@ |
| └ 97.77.221.0/24 | 256 | NET-97-77-221-0-1 | South Texas College (C07208347) · US | Reassigned | Oct 26, 2018 | abuse@ via RCSW |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- Charter Communications Inc
- Handle
- CC-3517
- Range
- 97.
76. 0. 0/ 14 - Registration type
- Direct Allocation
- Record created
- Sep 11, 2007
Origin network
AS23302
US
- Name
- South Texas College
- Type
- Education
- Registered
- Oct 11, 2007
- Domain
- southtexascollege.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 2009
- Current origin since
- Oct 2009 · 17 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 97.77.221.0/24 | AS23302 | /24 | ARIN | RPKI valid |
| 97.77.0.0/16 | AS11427 | /16 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS23302 | RADB | South Texas College - downstream cust. of Smartcom Telephone, LLC | MAINT-AS14860 | Dec 7, 2025 |
Whois
Registration for this announcement
- Range
- 97.
77. 221. 0/ 24 - Netname
- NET-97-77-221-0-1
- Registrant
- South Texas College
- Organization
- South Texas College (C07208347)
- Type
- Reassigned
- Handle
- NET-97-77-221-0-1
- Parent
- NET-97-76-0-0-1
- Created
- Oct 26, 2018
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 11, 2007
- Status
- assigned
Report abuse
Abuse contact
- abuse@
charter. net - Name
- Abuse
- Phone
- +1-877-777-2263
- Handle
- ABUSE19-ARIN